Hip Roof Calculator

This calculator provides a fast and efficient way to calculate essential lengths and angles for producing common, hip and jack rafters for simple and complex roofs.

Calculates everything from a minimal amount of input.

Results include rafter lengths, jack and hip rafter angles, backing angles, sheet angles and more. Supports use of square edged hip rafters.

Simple input and display of imperial or metric measurements.

This is a tool for professionals looking for a fast method of completing repetitive calculations on site.